Image Display

1. An image display device including a plurality of pixels arranged in a matrix form, a pixel drive voltage generating circuit for generating a pixel drive voltage and an image signal voltage generating circuit for generating an image signal voltage, the image display device comprising: a light emitting element drive circuit for controlling drive current to be provided to a light emitting element formed in each of the plurality of pixels; a first switching element for switching ON/OFF an input and output of the light emitting element drive circuit, a first terminal of the first switching element being directly connected to an input terminal of the light emitting element; a capacitor element, a first terminal of which is arranged to be directly connected to a second terminal of the first switching element; and a second switching element, a first terminal of which is arranged to be directly connected to a second terminal of the capacitor element, wherein: either one of the image signal voltage supplied from the image signal voltage generating circuit or pixel drive voltage supplied from the pixel drive voltage generating circuit is inputted to a second terminal of the second switching element, and wherein: an amount of the drive current is controlled in accordance with both the pixel drive voltage and the image signal voltage, a gate electrode of the first switching element is directly and electrically connected to a reset line, and a gate electrode of the second switching element is directly and electrically connected to a gate line.

2. The image display device according to claim 1 , wherein an output terminal of the image signal voltage generating circuit is connected to a signal line, and wherein the second switching element is provided between the signal line and the capacitor element.

3. The image display device according to claim 1 , wherein an output terminal of the pixel drive voltage generating circuit is connected to a drive voltage line, and wherein a third switching element is provided between the drive voltage line and the capacitor element for each of the plurality of pixels.

4. The image display device according to claim 1 , wherein the light emitting element drive circuit comprises a thin-film transistor, a source terminal which is arranged to be connected to a power supply line, a gate terminal which is arranged to be operable as a signal input terminal and a drain terminal which is arranged to be operable as a signal output terminal.

5. The image display device according to claim 4 , wherein the thin-film transistor comprises a P-channel type transistor.

6. The image display device according to claim 1 , wherein the amount of the drive current is controlled in accordance with a difference between an amount of the pixel drive voltage and an amount of the image signal voltage.

7. The image display device according to claim 1 , further comprising an inverter connected in parallel with the first switching element between the first terminal of the capacitor element and the input terminal of the light emitting element, wherein the inverter is configured so that the inverter will be reset when a reset signal is provided on the reset line to turn on the first switching element.

8. The image display device according to claim 2 , wherein the image signal voltage supplied from the image signal voltage generating circuit and the pixel drive voltages supplied from the pixel drive voltage generating circuit are alternately inputted to the second terminal of the second switching element via the signal line.

9. An image display device including a plurality of pixels arranged in a matrix form, a pixel drive voltage generating circuit for generating a pixel drive voltage and an image signal voltage generating circuit for generating an image signal voltage, the image display device comprising: a light emitting element drive circuit for controlling drive current to be provided to a light emitting element formed in each of the plurality of pixels; a first switching element for switching ON/OFF an input and output of the light emitting element drive circuit; a second switching element which is provided between the light emitting element and the first switching element, a first terminal of which is arranged to be directly connected to an input terminal of the light emitting element, a gate terminal of which is arranged to be directly connected to a first terminal of the first switching element; a capacitor element, a first terminal of which is arranged to be directly connected to a second terminal of the first switching element; and a third switching element, a first terminal of which is arranged to be directly connected to a second terminal of the capacitor element, wherein: either one of the image signal voltage supplied from the image signal voltage generating circuit or pixel drive voltage supplied from the pixel drive voltage generating circuit is inputted to a second terminal of the third switching element, and wherein: an amount of the drive current is controlled in accordance with both the pixel drive voltage and the image signal voltage, a gate electrode of the first switching element is directly and electrically connected to a reset line, a gate electrode of the third switching element is directly and electrically connected to a gate line, and the first switching element and the third switching element comprise N-channel type transistors, and the second switching element comprises a P-channel type transistor.

10. An image display device including a plurality of pixels arranged in a matrix form, a pixel drive voltage generating circuit for generating a pixel drive voltage and an image signal voltage generating circuit for generating an image signal voltage, the image display device comprising: a light emitting element drive circuit for controlling drive current to be provided to a light emitting element formed in each of the plurality of pixels; a first switching element for switching ON/OFF an input and output of the light emitting element drive circuit, a first terminal of the first switching element being directly connected to an input terminal of the light emitting element; a capacitor element, a first terminal of which is arranged to be directly connected to a second terminal of the first switching element; and either one of the image signal voltage supplied from the image signal voltage generating circuit or pixel drive voltage supplied from the pixel drive voltage generating circuit is inputted to a second terminal of the capacitor element, and wherein: an amount of the drive current is controlled in accordance with both the pixel drive voltage and the image signal voltage, and a gate electrode of the first switching element is directly and electrically connected to a reset line.

11. The image display device according to claim 10 , wherein an output terminal of the image signal voltage generating circuit is connected to a signal line, and wherein the second switching element is provided between the signal line and the capacitor element.

12. The image display device according to claim 10 , wherein an output terminal of the pixel drive voltage generating circuit is connected to a drive voltage line, and wherein a third switching element is provided between the drive voltage line and the capacitor element for each of the plurality of pixels.

13. The image display device according to claim 10 , wherein the light emitting element drive circuit comprises a thin-film transistor, a source terminal which is arranged to be connected to a power supply line, a gate terminal which is arranged to be operable as a signal input terminal and a drain terminal which is arranged to be operable as a signal output terminal.

14. The image display device according to claim 13 , wherein the thin-film transistor comprises a P-channel type transistor.

15. The image display device according to claim 10 , wherein the amount of the drive current is controlled in accordance with a difference between an amount of the pixel drive voltage and an amount of the image signal voltage.

16. The image display device according to claim 10 , further comprising an inverter connected in parallel with the first switching element between the first terminal of the capacitor element and the input terminal of the light emitting element, wherein the inverter is configured so that the inverter will be reset when a reset signal is provided on the reset line to turn on the first switching element.